A Validation Study of the Web-Based Physical Activity Questionnaire Active-Q Against the GENEA Accelerometer.

ABSTRACT:

Background

Valid physical activity assessment in epidemiological studies is essential to study associations with various health outcomes.

Objective

To validate the Web-based physical activity questionnaire Active-Q by comparing results of time spent at different physical activity levels with results from the GENEA accelerometer and to assess the reproducibility of Active-Q by comparing two admissions of the questionnaire.

Methods

A total of 148 men (aged 33 to 86 years) responded to Active-Q twice and wore the accelerometer during seven consecutive days on two occasions. Time spent on six different physical activity levels including sedentary, light (LPA), moderate (MPA), and vigorous (VPA) as well as additional combined categories of sedentary-to-light and moderate-t

SUBMITTER: Bonn SE 

PROVIDER: S-EPMC4527001 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature